package com.tycoin.utils;

import org.apache.commons.lang.StringUtils;

public class UnicodeUtils {

    public static String unicode2String(String unicode){  
        if(StringUtils.isBlank(unicode))return null;
        StringBuilder sb = new StringBuilder();  
        int i = -1;  
        int pos = 0;  
          
        while((i=unicode.indexOf("\\u", pos)) != -1){  
            sb.append(unicode.substring(pos, i));  
            if(i+5 < unicode.length()){  
                pos = i+6;  
                sb.append((char)Integer.parseInt(unicode.substring(i+2, i+6), 16));  
            }  
        }  
          
        return sb.toString();  
    }  

    public static String string2Unicode(String string) {

        if(StringUtils.isBlank(string))return null;
        StringBuffer unicode = new StringBuffer();
     
        for (int i = 0; i < string.length(); i++) {
     
            // 取出每一个字符
            char c = string.charAt(i);
     
            // 转换为unicode
            unicode.append("\\u" + Integer.toHexString(c));
        }
     
        return unicode.toString();
    }
}